Geeks in the UK may be interested in “Britain’s Greatest Codebreaker” on Channel 4 tonight (21 Nov) at 9pm. Described as a drama documentary, the programme follows the life of Alan Turing, the mathematical genius who was instrumental in breaking the German Naval Enigma code during World War II. His achievements were overshadowed by his homosexuality and two years after being convicted for gross indecency he committed suicide in 1954 aged 41.

According to the notes, the programme will feature “contemporary experts from the world of technology and high science, including Apple co-founder Steve Wozniak.”

Set your PVR now.

(The notes also say that the programme will be available on 4oD shortly after transmission, but this is usually only available if you are in the UK or Ireland. 4oD is Channel 4’s on-demand Internet streaming service.)